This geocache will take you to a rare river
feature for this area known as a "Backbone" -A narrow ridge of
limestone formed when a channel of a river or stream cuts away a
canyon from the cliff wall of a river bank. Many times backbones
occur at a point where one stream enters another, and that is what
has happened here.
This little backbone is located on Treaty Creek which is a
tributary of the Wabash River. Glacial melt may have contributed to
the formation of this narrow backbone that is about 120 feet long,
and at the most twenty feet wide. The stream bed of the backbone is
dry now (elevated higher than Treaty Creek) and you may walk down
through the tunnel and climb up on the Backbone if you wish. The
narrow channel is only a few yards wide . The cliff face is
considerably higher than the top of the backbone, and it slopes up
toward the peak of a Klint. Cascading stepped limestone rapids are
located just downstream of the backbone, giving evidence of the
continuing evolution of the stream bed, as it makes its way to the
lower elevation of the Wabash River, a few miles north. ( See the
diagram.)
In order to claim a find on this virtual
cache, you MUST:
1. Post a photograph of yourself either in the "Tunnel" or on
top of the ridge. Make sure your face is in the photo. Be careful
when climbing.
2. Email the owner with your estimate
of the height in feet of the Backbone, measured from the bottom of
the middle of the tunnel to the top of the backbone, and to the top
of the cliff opposite the backbone.
HAPPY HUNTING!!
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No gag photos accepted. Logs that indicate Night Caching at this
site will be deleted permanently.